Which are acceptable names for the line?

choose all answers that are correct.

a.

b.
line lr

c.
line r

d.
rw

How many zeros does the function f(x)=4x3-x2+1 have

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Ineed with number 6 , explain how to get 1978